CN105021770A - CTL1000/100 type detector for carbon monoxide and hydrogen sulfide - Google Patents
CTL1000/100 type detector for carbon monoxide and hydrogen sulfide Download PDFInfo
- Publication number
- CN105021770A CN105021770A CN201510310942.4A CN201510310942A CN105021770A CN 105021770 A CN105021770 A CN 105021770A CN 201510310942 A CN201510310942 A CN 201510310942A CN 105021770 A CN105021770 A CN 105021770A
- Authority
- CN
- China
- Prior art keywords
- analyzer
- carbon monoxide
- alarm
- ctl1000
- detector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The invention provides a CTL1000/100 type detector for carbon monoxide and hydrogen sulfide. The detector comprises a detector shell; the detector shell comprises a viewing port, a control button and an air inlet; a detector circuit main board is arranged in the detector shell and connected with a carbon monoxide sensor, a hydrogen sulfide sensor, an A/D converter, a one-chip microcomputer, a displayer, alarms, a wireless transmit-receive module and a battery; and the upper side surface in the detector shell is provided with emergency lamps. The CTL1000/100 type detector for carbon monoxide and hydrogen sulfide is stable in performance, accurate in threshold, rapid in response and high in accuracy; due to humanized design and usage of soft adjusting technology, the detector is easy to operate and convenient to use; the shell of an alarming instrument is of an ABS high-strength all-plastic structure, a membrane switch with high sealing performance is cooperatively used, a four digital tube with highlight brightness and a red color is employed for displaying, and a combined acoustic, optical and vibrating alarming mode is utilized, so alarming effect is more obvious and better; moreover, the detector has the advantages of novel structure, unique appearance, small size, light weight, portability and capacity of uploading night watching data due to arrangement of the wireless transmit-receive module.
Description
Technical field
The present invention relates to a kind of gas detecting and alarming instrument, particularly a kind of CTL1000/100 type carbon monoxide sulfuretted hydrogen analyzer.
Background technology
Carbon monoxide sulfuretted hydrogen analyzer be a kind of can the essential safe type instrument of poisonous and harmful, flammable explosive gas concentration in continuous detecting operating environment.Be applicable to explosion-proof, toxic gas leak speedily carry out rescue work, the place such as underground pipeline or mine, effectively can ensure that the life security of staff is not encroached on, production equipment is not suffered a loss.Be applicable to the concentration of testing environment CO in Air and sulfuretted hydrogen.More there is sensitivity and poor stability, the shortcoming that the working time is short in the carbon monoxide sulfuretted hydrogen analyzer now used, be not suitable for mining work under mine, simultaneously less than normal to the sensing range of hazardous gas, also just reduces security performance to a certain extent.
Summary of the invention
For the problems referred to above, the present invention proposes CTL1000/100 type carbon monoxide sulfuretted hydrogen analyzer.
For solving above technical matters, technical scheme provided by the invention is:
CTL1000/100 type carbon monoxide sulfuretted hydrogen analyzer, it is characterized in that, comprise analyzer housing, the front of analyzer housing has observation panel and control knob, described control knob is keyswitch type electronic thin film switch, the quantity of control knob is 4, and the upper side of analyzer housing has air intake opening, and described air intake opening place is provided with valve;
Analyzer circuit main board is provided with in analyzer housing, described analyzer circuit main board is connected with carbon monoxide transducer, hydrogen sulfide sensor, A/D converter, single-chip microcomputer, display, alarm, radio receiving transmitting module and battery, and described battery realizes supplying the power supply of carbon monoxide transducer, hydrogen sulfide sensor, A/D converter, single-chip microcomputer, display, alarm and radio receiving transmitting module by analyzer circuit main board;
One end of described carbon monoxide transducer is connected with analyzer circuit main board, the other end is connected with A/D converter, one end of described hydrogen sulfide sensor is connected with analyzer circuit main board, the other end is connected with A/D converter, described carbon monoxide transducer and hydrogen sulfide sensor are all positioned at air intake opening place, described A/D converter is connected with single-chip microcomputer, described single-chip microcomputer is connected with display and alarm by analyzer circuit main board, described alarm comprises sound alarm subsystem, light crossing-signal and vibrations alarm, described sound alarm subsystem is the passive hummer of paster, described light crossing-signal is ceramic paster LED light source, described vibrations alarm is vibrating motor, sound alarm subsystem, light crossing-signal and vibrations alarm synchronous working, described display is numeral method device, numeral method device is the red charactrons of four high brightness, display and observation panel corresponding matching,
Upper side in analyzer housing is also provided with emergency light, described emergency light quantity 2, lay respectively at air intake opening both sides, emergency light is connected with emergency light power supply, described emergency light power supply and battery relatively independent, emergency light is by emergency light switch control rule, and described emergency light switch is keyswitch type electronic thin film switch, is arranged at analyzer housing left upper portion; Described radio receiving transmitting module is arranged in analyzer housing, is connected with analyzer circuit main board;
Further, described battery and emergency light power supply are PL123450 mine lamp 1500mAh LiMn2O4 accumulator;
Further, described analyzer housing is the overall plastic structure of ABS high strength;
Further, be sheathed with leather sheath outside described analyzer housing, described leather sheath both sides are provided with band, and described band is provided with VELCRO.
This CTL1000/100 type carbon monoxide sulfuretted hydrogen analyzer is in carbon monoxide (0 ~ 1000) × 10
-6cO and sulfuretted hydrogen (0 ~ 20) × 10
-6h
2alarm set point is set arbitrarily in the scope of S, the difference of carbonic oxide alarming displayed value and setting value is no more than ± and 1 × 10
-6cO, the difference of sulfuretted hydrogen alarm indication value and setting value is no more than ± and 3 × 10
-6h
2s, first set the alarm set point of sulfuretted hydrogen and carbon monoxide in use, air intake opening by valve by mining for the air intake in environment alarm, hydrogen sulfide sensor detects the stink damp body burden in air, carbon monoxide transducer detects the carbon monoxide gas body burden in air, and send voltage signal, above-mentioned voltage signal converts thereof into digital signal by A/D converter, single-chip microcomputer is sent to carry out digital processing, digital signal after digital processing demonstrates concentration of hydrogen sulfide and the carbonomonoxide concentration of tested gas by analyzer circuit main board driving display, when concentration of hydrogen sulfide reaches warning value or carbonomonoxide concentration reaches or is less than alarming value, single-chip microcomputer exports control signal immediately, device circuit main board control alarm gives the alarm after measured, sound alarm subsystem, light crossing-signal and vibrations alarm synchronously send buzzing, flash of light and vibration, buzzing is loud, flash of light, vibration obviously, simultaneously numeral method red numerical flashing, this CTL1000/100 type carbon monoxide sulfuretted hydrogen analyzer also passes through single-chip microcomputer, setting clock, and be shown on display, the staff be convenient under mine understands time variations, be configured with radio receiving transmitting module simultaneously, when night watching, radio receiving transmitting module does not work, until night watching terminates, during charging, radio receiving transmitting module is opened, and automatically and Patrol Terminal carry out wireless connections, upload the night watching data of preservation.After data end of transmission, close radio receiving transmitting module, detection alarm instrument enters charging off-mode.
This CTL1000/100 type carbon monoxide sulfuretted hydrogen analyzer is not when using, and detection alarm instrument can be placed in leather sheath, by the band bundle of leather sheath both sides on arm or waist.
In sum, CTL1000/100 type carbon monoxide sulfuretted hydrogen analyzer of the present invention adopts high-performance sensors, micro computer digital technology and Novel electronic devices, stable performance, thresholding is accurate, be swift in response, precision is high, use-pattern adopts human oriented design, soft regulation technology, simple to operate, easy to use, detection alarm instrument shell adopts the overall plastic structure of ABS high strength, the keyswitch type electronic thin film switch of adapted high sealing performance, four red numeral method of high brightness, novel structure, exotic shape, volume is little, lightweight, easy to carry, clear with alarm, obviously, and be configured with radio receiving transmitting module, upload night watching data.
Accompanying drawing explanation
Fig. 1 schematic diagram of the present invention.
Fig. 2 schematic diagram of the present invention.
Fig. 3 leather sheath schematic diagram.
Fig. 4 air chamber schematic diagram.
Embodiment
CTL1000/100 type carbon monoxide sulfuretted hydrogen analyzer as shown in the figure, it is characterized in that, comprise analyzer housing 1, analyzer housing 1 is in rectangular parallelepiped, the length of its rectangular parallelepiped being, wide, height is respectively L, D and H, described L=96mm, D=56mm, H=28mm, analyzer housing 1 is by upper shell 24, lower house 25 laminating forms, and be bolted, O-ring seal 26 is provided with between upper shell 24 and lower house 25, the front of analyzer housing 1 has observation panel 2 and control knob 3, described control knob 3 is keyswitch type electronic thin film switch, the quantity of control knob 3 is 4, the upper side of analyzer housing 1 has air intake opening 4, described air intake opening 4 is communicated with air chamber 27, described air chamber 27 is arranged in analyzer housing 1, air intake opening 4 place is provided with valve 5, internal thread and rubber plug 29, the tubulose of described valve 5 in hollow, its lower end is provided with external thread, valve 5 is coordinated by internal and external threads and is dismountablely fixed on air intake opening 4 place, medium air filtration cotton 28 is provided with in valve 5, described medium air filtration cotton 28 enters the dust of air chamber 27 with air for filtering, when not using, take off valve 5 blend rubber plug 29 and clog air intake opening 4, ensure that air chamber 27 is clean, and protect in analyzer housing 1,
Analyzer circuit main board 6 is provided with in analyzer housing 1, described analyzer circuit main board 6 is connected with carbon monoxide transducer 7, hydrogen sulfide sensor 8, A/D converter 9, single-chip microcomputer 10, display 11, alarm 12, radio receiving transmitting module 13 and battery 14, and described battery 14 realizes supplying the power supply of carbon monoxide transducer 7, hydrogen sulfide sensor 8, A/D converter 9, single-chip microcomputer 10, display 11, alarm 12 and radio receiving transmitting module 13 by analyzer circuit main board 6;
One end of described carbon monoxide transducer 7 is connected with analyzer circuit main board 6, the other end is connected with A/D converter 9, one end of described hydrogen sulfide sensor 8 is connected with analyzer circuit main board 6, the other end is connected with A/D converter 9, described carbon monoxide transducer 7 and hydrogen sulfide sensor 8 are all positioned at air intake opening 4 place, be arranged in air chamber 27, described A/D converter 9 is connected with single-chip microcomputer 10, described single-chip microcomputer 10 is connected with display 11 and alarm 12 by analyzer circuit main board 6, described alarm 12 comprises sound alarm subsystem 15, light crossing-signal 16 and vibrations alarm 17, described sound alarm subsystem 15 is the passive hummer of paster, described light crossing-signal 16 is ceramic paster LED light source, described vibrations alarm 17 is vibrating motor, sound alarm subsystem 15, light crossing-signal 16 and vibrations alarm 17 synchronous working, described display 11 is numeral method device, numeral method device is the red charactrons of four high brightness, display 11 and observation panel 2 corresponding matching,
Upper side in analyzer housing 1 is also provided with emergency light 18, described emergency light 18 quantity 2, lay respectively at air intake opening 4 both sides, emergency light 18 is connected with emergency light power supply 19, described emergency light power supply 19 is relatively independent with battery 14, emergency light 18 is by emergency light switch control rule 20, and described emergency light switch 20 is keyswitch type electronic thin film switch, is arranged at analyzer housing 1 left upper portion; Described radio receiving transmitting module 13 is arranged in analyzer housing 1, is connected with analyzer circuit main board 6;
Wherein, described analyzer housing 1 is the overall plastic structure of ABS high strength, and battery 14 and emergency light power supply 19 are PL123450 mine lamp 1500mAh LiMn2O4 accumulator, are sheathed with leather sheath 21 outside described analyzer housing 1, described leather sheath 21 both sides are provided with band 22, and described band 22 is provided with VELCRO 23.
The CTL1000/100 type carbon monoxide sulfuretted hydrogen analyzer performance parameter of the present embodiment is as follows:
1, environment for use condition:
---temperature: (0 ~ 40) DEG C;
---humidity :≤98%;
---atmospheric pressure: (80 ~ 116) kPa;
---wind speed: (0 ~ 8) m/s;
---underground coal mine has the hazardous area of gas, coal dust explosion.
2, measurement range:
(1), carbon monoxide: (0 ~ 1000) × 10
-6cO;
(2), sulfuretted hydrogen: (0 ~ 100) × 10
-6h
2s.
3, fundamental error
(1), carbon monoxide:
(0 ~ 20) × 10
-6during CO, be not more than ± 2;
> (20 ~ 100) × 10
-6during CO, be not more than ± 4;
> (100 ~ 500) × 10
-6during CO, be not more than ± 5% true value;
> (500 ~ 1000) × 10
-6during CO, be not more than ± 6% true value;
(2), sulfuretted hydrogen:
(0 ~ 49) × 10
-6h
2during S, be not more than ± 3 × 10
-6h
2s;
> (50 ~ 100) × 10
-6h
2during S, be not more than true value ± 10%;
4, alarm set point:
(1), carbon monoxide: in (0 ~ 1000) × 10
-6arrange arbitrarily within the scope of CO, default setting when dispatching from the factory is 24 × 10
-6cO;
(2), sulfuretted hydrogen: in (0 ~ 20) × 10
-6h
2arrange arbitrarily within the scope of S, default setting when dispatching from the factory is 10 × 10
-6h
2s.
5, warning error:
(1), carbon monoxide: ± 1 × 10
-6cO;
(2), sulfuretted hydrogen: ± 3 × 10
-6h
2s.
6, type of alarm and effect: sound alarm subsystem, from sound source axial distance one meter of distant place, the sound intensity is not less than 75dB.
7, analyzer resolution:
(1), carbon monoxide: 1 × 10
-6cO;
(2), sulfuretted hydrogen: 1 × 10
-6h
2s.
8, the response time:
(1), carbon monoxide: be not more than 45s;
(2), sulfuretted hydrogen: be not more than 45s.
9, complete machine maximum operating currenbt :≤130mA.
10, stream time: once charging is greater than 10h
11, battery: analyzer adopts PL123450 mine lamp 1500mAh LiMn2O4 accumulator:
Rated voltage Ue:3.7V;
Maximum output voltage Uo:4.2V;
Maximum output current Io:2.9A;
Charging voltage is 9V DC, and charging current is 200mA.
12, analyzer is mining intrinsic safety type, is explosion-proofly masked as " ExibI ".
13, analyzer shell adopts antistatic ABS engineering plastics, creepage distance, electric clearance and spacing all >=2.0mm.
14, analyzer housing physical dimension: 96 × 56 × 28(mm).
15, radio receiving transmitting module:
(1), communication modes: amplitude modulation AM;
(2), frequency of operation: 315MHZ;
(3), frequency stability: ± 75KHZ;
(4), emissive power :≤500mW;
(5), quiescent current :≤0.1UA;
(6), transmitter current: 3 ~ 50mA;
(7), operating voltage: DC 3.7V.
This CTL1000/100 type carbon monoxide sulfuretted hydrogen analyzer is in carbon monoxide (0 ~ 1000) × 10
-6cO and sulfuretted hydrogen (0 ~ 20) × 10
-6h
2alarm set point is set arbitrarily in the scope of S, the difference of carbonic oxide alarming displayed value and setting value is no more than ± and 1 × 10
-6cO, the difference of sulfuretted hydrogen alarm indication value and setting value is no more than ± and 3 × 10
-6h
2s, first set the alarm set point of sulfuretted hydrogen and carbon monoxide in use, air intake opening by valve by mining for the air intake in environment alarm, hydrogen sulfide sensor detects the stink damp body burden in air, carbon monoxide transducer detects the carbon monoxide gas body burden in air, and send voltage signal, above-mentioned voltage signal converts thereof into digital signal by A/D converter, single-chip microcomputer is sent to carry out digital processing, digital signal after digital processing demonstrates concentration of hydrogen sulfide and the carbonomonoxide concentration of tested gas by analyzer circuit main board driving display, when concentration of hydrogen sulfide reaches warning value or carbonomonoxide concentration reaches or is less than alarming value, single-chip microcomputer exports control signal immediately, device circuit main board control alarm gives the alarm after measured, sound alarm subsystem, light crossing-signal and vibrations alarm synchronously send buzzing, flash of light and vibration, buzzing is loud, flash of light, vibration obviously, simultaneously numeral method red numerical flashing, this CTL1000/100 type carbon monoxide sulfuretted hydrogen analyzer also passes through single-chip microcomputer, setting clock, and be shown on display, the staff be convenient under mine understands time variations, be configured with radio receiving transmitting module simultaneously, when night watching, radio receiving transmitting module does not work, until night watching terminates, during charging, radio receiving transmitting module is opened, and automatically and Patrol Terminal carry out wireless connections, upload the night watching data of preservation.After data end of transmission, close radio receiving transmitting module, detection alarm instrument enters charging off-mode.
This CTL1000/100 type carbon monoxide sulfuretted hydrogen analyzer is not when using, and detection alarm instrument can be placed in leather sheath, by the band bundle of leather sheath both sides on arm or waist.
In sum, CTL1000/100 type carbon monoxide sulfuretted hydrogen analyzer of the present invention adopts high-performance sensors, micro computer digital technology and Novel electronic devices, stable performance, thresholding is accurate, be swift in response, precision is high, use-pattern adopts human oriented design, soft regulation technology, simple to operate, easy to use, detection alarm instrument shell adopts the overall plastic structure of ABS high strength, the keyswitch type electronic thin film switch of adapted high sealing performance, four red numeral method of high brightness, novel structure, exotic shape, volume is little, lightweight, easy to carry, clear with alarm, obviously, and be configured with radio receiving transmitting module, upload night watching data.
The above; be only the present invention's preferably embodiment, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (5)
1.CTL1000/100 type carbon monoxide sulfuretted hydrogen analyzer, is characterized in that, comprise analyzer housing, analyzer housing is rectangular parallelepiped, the length of its rectangular parallelepiped being is respectively L, D and H, described L=96mm, D=56mm, H=28mm, observation panel and control knob are carved with in the front of analyzer housing, and described control knob is keyswitch type electronic thin film switch, and control knob quantity is 4, the upper side of analyzer housing has air intake opening, and described air intake opening place is provided with valve.
2. CTL1000/100 type carbon monoxide sulfuretted hydrogen analyzer as claimed in claim 1, it is characterized in that, analyzer circuit main board is provided with in analyzer housing, described analyzer circuit main board is connected with carbon monoxide transducer, hydrogen sulfide sensor, A/D converter, single-chip microcomputer, display, alarm, radio receiving transmitting module and battery, and described battery realizes supplying the power supply of carbon monoxide transducer, hydrogen sulfide sensor, A/D converter, single-chip microcomputer, display, alarm and radio receiving transmitting module by analyzer circuit main board.
3. CTL1000/100 type carbon monoxide sulfuretted hydrogen analyzer as claimed in claim 2, it is characterized in that, one end of described carbon monoxide transducer is connected with analyzer circuit main board, the other end is connected with A/D converter, one end of described hydrogen sulfide sensor is connected with analyzer circuit main board, the other end is connected with A/D converter, described carbon monoxide transducer and hydrogen sulfide sensor are all positioned at air intake opening place, described A/D converter is connected with single-chip microcomputer, described single-chip microcomputer is connected with display and alarm by analyzer circuit main board, described alarm comprises sound alarm subsystem, light crossing-signal and vibrations alarm, described sound alarm subsystem is the passive hummer of paster, described light crossing-signal is ceramic paster LED light source, described vibrations alarm is vibrating motor, sound alarm subsystem, light crossing-signal and vibrations alarm synchronous working, described display is numeral method device, numeral method device is the red charactrons of four high brightness, display and observation panel corresponding matching.
4. CTL1000/100 type carbon monoxide sulfuretted hydrogen analyzer as claimed in claim 1, it is characterized in that, upper side in analyzer housing is also provided with emergency light, described emergency light quantity 2, lay respectively at air intake opening both sides, emergency light is connected with emergency light power supply, described emergency light power supply and battery relatively independent, emergency light is by emergency light switch control rule, described emergency light switch is keyswitch type electronic thin film switch, be arranged at analyzer housing left upper portion, described radio receiving transmitting module is arranged in analyzer housing, is connected with analyzer circuit main board.
5. the CTL1000/100 type carbon monoxide sulfuretted hydrogen analyzer as described in claim 1 and 4, it is characterized in that, described battery and emergency light power supply are PL123450 mine lamp 1500mAh LiMn2O4 accumulator, described analyzer housing is the overall plastic structure of ABS high strength, leather sheath is sheathed with outside described analyzer housing, described leather sheath both sides are provided with band, and described band is provided with VELCRO.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510310942.4A CN105021770A (en) | 2015-06-09 | 2015-06-09 | CTL1000/100 type detector for carbon monoxide and hydrogen sulfide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510310942.4A CN105021770A (en) | 2015-06-09 | 2015-06-09 | CTL1000/100 type detector for carbon monoxide and hydrogen sulfide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105021770A true CN105021770A (en) | 2015-11-04 |
Family
ID=54411895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510310942.4A Pending CN105021770A (en) | 2015-06-09 | 2015-06-09 | CTL1000/100 type detector for carbon monoxide and hydrogen sulfide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105021770A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201344903Y (en) * | 2009-01-21 | 2009-11-11 | 北京市华云分析仪器研究所有限公司 | Handheld gas analyzer |
| CN202330388U (en) * | 2011-11-16 | 2012-07-11 | 淮南市松江电子有限责任公司 | Methane and oxygen measurer |
| CN202956244U (en) * | 2012-12-13 | 2013-05-29 | 河南省建筑科学研究院有限公司 | Device for measuring gas resistance value of sampling adsorption tube |
| CN203824984U (en) * | 2014-04-17 | 2014-09-10 | 河南省智仪系统工程有限公司 | Handheld multi-component gas detection alarm apparatus |
| CN204964474U (en) * | 2015-06-09 | 2016-01-13 | 扬中市南方矿用电器有限公司 | CTL1000100 type carbon monoxide hydrogen sulfide analyzer |
-
2015
- 2015-06-09 CN CN201510310942.4A patent/CN105021770A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201344903Y (en) * | 2009-01-21 | 2009-11-11 | 北京市华云分析仪器研究所有限公司 | Handheld gas analyzer |
| CN202330388U (en) * | 2011-11-16 | 2012-07-11 | 淮南市松江电子有限责任公司 | Methane and oxygen measurer |
| CN202956244U (en) * | 2012-12-13 | 2013-05-29 | 河南省建筑科学研究院有限公司 | Device for measuring gas resistance value of sampling adsorption tube |
| CN203824984U (en) * | 2014-04-17 | 2014-09-10 | 河南省智仪系统工程有限公司 | Handheld multi-component gas detection alarm apparatus |
| CN204964474U (en) * | 2015-06-09 | 2016-01-13 | 扬中市南方矿用电器有限公司 | CTL1000100 type carbon monoxide hydrogen sulfide analyzer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105737886A (en) | Mining multi-parameter measuring device | |
| CN204964474U (en) | CTL1000100 type carbon monoxide hydrogen sulfide analyzer | |
| CN105181904A (en) | CJT-4/1000 methane and carbon monoxide detection alarm instrument | |
| CN102384360B (en) | Mine lamp with functions of displaying carbon monoxide concentration in digitized way, detecting carbon monoxide concentration and alarming | |
| CN105136997B (en) | GYH25 oxygen sensor for mine | |
| CN105021771A (en) | CYT-25/1000 detecting and alarming instrument for oxygen and carbon monoxide | |
| CN204964494U (en) | CJY430 type methane oxygen analyzer | |
| CN105021770A (en) | CTL1000/100 type detector for carbon monoxide and hydrogen sulfide | |
| CN105136998A (en) | CJT4/4000 methane and carbon monoxide measuring device | |
| CN205879233U (en) | Hand -held type power cable tunnel is tourd and maintenance tool | |
| CN204731187U (en) | CTH1000-8A carbon monoxide tester | |
| CN105044169A (en) | CTH1000-8A-carbon monoxide measuring equipment | |
| CN204758568U (en) | CYT -251000 oxygen carbon monoxide detection alarm appearance | |
| CN205607949U (en) | Portable multi -parameter measurer | |
| CN109373200A (en) | Compressed air line leak detection system based on comprehensive parameters analysis | |
| CN204813859U (en) | Intelligence blood pressure measuring apparatu based on mobile internet | |
| CN105137000A (en) | CD5 type portable multi-parameter measuring device | |
| CN203798728U (en) | Portable type sulfur hexafluoride gas detection device | |
| CN105092812A (en) | CJY4/30 type methane oxygen measuring device | |
| CN105137001A (en) | CD3 multi-parameter gas measuring device | |
| CN205620372U (en) | Hydrogen analyzer for coal mine | |
| CN105137027A (en) | JCB4X suspension type methane detection alarm device | |
| CN204960978U (en) | JCB4 (B) methane detecting alarm device | |
| CN105181753A (en) | CTH1000A carbon monoxide measuring apparatus | |
| CN207318335U (en) | A kind of mining infrared methane concentration detector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151104 |
|
| RJ01 | Rejection of invention patent application after publication |